Car heating by controller rheostats



March 1929- I -J. M.IBOSENBURY 1,705,393

CAR HEATING BY CONTROLLER RHEOSTA'I'S Filed Jan. 27. 1928 M002 aqmh M Bamzbary Q, Ma woman Patented Mar. 12, 1929.

UNITED ldAlENT OFFICE.

JOSEPH M. BOSENBURY, OF PEORIA, ILLINOIS, ASSIG-NOR TO CONSOLIDATED CAR- HEATING COMPANY, OF ALBANY, NEW YORK, A CORPORATION OF WEST VIR- GINIA.

CAR HEATING BY CONTROLLER RHEOSTATS.

Application filed January 27, 1928. Serial No. 249,981.

For a detailed. description of the present pond to grid-section D. Thereby these secform of my invention, reference may be had iions, although of wire-coils sized and disto the Ll'ollownig specification and to the aci. hated J l purposes may also serve companying drawing forming a part thereof. in 'roups as a col 'oller-rheostat to graduate 5 My invention consists in providing the con-- he car speed with the same effect as the troller for the propelling motors of: an elect! it. grid l.

car with a. donhle set of rheostatic i'csisi'ancw. l. claim as new and desire to secure one set being; located under the car in thrby Letters Patentis: usual manner and the other set heing divided 1. A controller ior electric cars h aving two into sections, the several sec ions lining 'dissets oi' resistances, one a resistance outside of trihnted through the body oi' the car in st the car body. the other a resistance inside the able casings, preferably in the same casinos car body ior car heating". and a switch for which. contain the usual electric heaters and connecting the sets to the controller altermonnted in the same manner 2: said heaters. i. tcly.

Between the controllers and the two sets of 4i controller tor electric cars having a rheostatic resistances I provide 2. switch for resistance outside the car body in the form connecting the sets to the controllers alterof i arid. the other a resistance inside the car nately. I am. thus ahle to utilize one ol? said boo h lViTlg a length o'l wire corresponding sets a supplementarymeans of heating'thc to a. grid section divided into a set of car car in e .eme cold weather. while the conheaters each enclosed in a. casing and a switch troller is at all times equipped with the nccesfor connect an the two resistances to the con sary resistors for modifying the car speed. trollcr alternately.

Referr ng to the drawing. R, R. R R 3. A controller for electric cars having two R. represent ircs extendingbetween the sets oi resistances, one composed of coil sectwo controllers at the opposite erdsol the car tions within the car body contained in casrcspcciivcly. l is a selector switch hy moans iltifi-i wh'ch also contain heating resistance in of which the said wires may be connected rca separate heating circuit and a switch for spcctively to the wires 1' r r 0*, 1", which conneciinp; the two sets to the controller alterleael to the resistor grid A. B. C, D of the natcly.

nsifal rhoostatti under the car hotly. or, when 4. In a car heater, a casing, a section of turned in the opposite direction, ll. conthe car motor resistors enclosed within said nect them to the corresponding wires R R cas o. and a heater resistance also enclosed R R211 1e. to the car heaters. witl n said casing.

In the ho r of the car are the normal 5. A'car heating; system connn-isingg; a moheater sections numbered from i to 20, which tor rhcostat, a series of resistances contained are shown as cmnectcd n series between the in a permanent heater circuit between the trolley T and the ground by means oi the trolley andv ground; a second series of supplehand-switch E and each c mental heater resistances in series with the able casiinr guarding it and cna it lYlOlTDi' and arranged to serve as motor rheoto radiate its hea into the car. Certain ones stat resistors, and a switch for selectively cono'l this s-W' s 9f casing are shown containnecting! the motor c rcuit with said rhcostat 2 1- ion to the normal heater-coil secor with said supplemental heater resistances. tion. a sec: :on of controller rheost-at. Oftheso 6. A (-on'ihinod heating and controlling: systhe ones 111a l l. l. l correspond to {Ir dtom for an electric car comprising a series of sec ion B of a under-car rheostat; those "wires C(JUWP flnQ the controllers atopposite 2. 9% correspond grid-section ends oftl .5 car. two branches therefrom each e in: w i lcontaining a se los of resistance sections snit- .5: (l for rein ing the car inc-tom. one series being contained in heater casings Within the car body and the othei' containing a group of ca1be(ly,zmda switch for connecting the two resistance sections Within the car body c01- 0 branches to the controllers alternately, l'espondin to each grid section and separate- 7. A combined car-heating and centi'elling 1y enclosed in heater casings together Wifih a 5 system comprising controllers as each end of switch for connecting the twc branches with the car, a series of Wires connecting them and the contrcileis aliernately. two branches therefrom one branch containing a se-c-tiensl'resismnce grid outside the c JQSEPH M. B-QSENBURY. 

